The five main latitude regions of the Earth's surface comprise geographical zones, divided by the major circles of latitude. The differences between them relate to climate. They are as follows: 1  The North Frigid Zone, north of the Arctic Circle, 4.12% of Earth's surface.he five main latitude regions of the Earth's surface comprise geographical zones, divided by the major circles of latitude. The differences between them relate to climate. They are as follows: 1  The North Frigid Zone, north of the Arctic Circle, 4.12% of Earth's surface.
According to Wikipedia, at six years of age, Kayla Rolland is believed to be the youngest school shooting victim in U.S. history. Dedric Owens is the youngest school shooter. Due to his age (born on May 5, 1993) and the legal claim that at that age he would have the lack of ability to form intent, Owens was not charged with murder.
The first known mass shooting in the U.S. where students were shot, was on April 9, 1891, when 70 year old, James Foster fired a shotgun at a group of students in the playground of St. Mary's Parochial School, Newburgh, New York, causing minor injuries to several of the students.